| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.90 | -0.05 |
| Feb | 0.86 | 0.88 | -0.02 |
| Mar | 1.22 | 1.29 | -0.07 |
| Apr | 2.18 | 2.20 | -0.02 |
| May | 3.16 | 3.19 | -0.03 |
| Jun | 4.45 | 4.46 | -0.01 |
| Jul | 4.17 | 4.06 | 0.11 |
| Aug | 3.58 | 3.52 | 0.06 |
| Sep | 3.32 | 3.47 | -0.15 |
| Oct | 2.87 | 2.82 | 0.05 |
| Nov | 1.53 | 1.55 | -0.02 |
| Dec | 1.17 | 1.34 | -0.17 |
29.36 | 29.68 | -0.32 |